Search results

Introduction Material properties are affected by the weld structure of high temperature and pressure pipes which are used in chemical industry.
Therefore, just getting two parameters-the stress intensity factor and limit load values solve the value of the creep fracture mechanics parameters C*, and the value of the value of C* is nothing to do with material properties.
Crack length a could be changed for getting different model size factors a/w in design calculation.
This phenomenon indicates the structure of specimen affects the creep crack property of material.
Compared with FEM, RSM has much more intuitive factors.

Table 1 Factors and factor levels.
As shown in Table 3, the water/cement ratio is one of the important factors affecting the properties of LWC i.e. water/cement ratio affected the compressive strength with 57.63% contribution.
Li, Mechanical properties of expanded polystyrene lightweight aggregate concrete and brick, Constr.
Aydin, Effect of steel fibers on the mechanical properties of natural lightweight aggregate concrete, Mater.
Prince, Physical and mechanical properties of mortars containing PET and PC waste aggregates, Waste.

The thermal stability of fine recrystallized grains in the nugget zone depends on process parameters and post-welding heat treatment and it has unusual consequences on mechanical properties.
The occurrence of this phenomenon may be a problem if it leads to a decay of mechanical properties of the weld.
The effects on tensile properties are considered too.
The factors that can affect the onset of AGG are as follows: anisotropy in grain boundary energy and mobility, reduction in pinning forces due to coarsening and/or dissolution of particles, and thermodynamic driving forces due to grain size distribution.
The AGG phenomenon seems to be a valuable mechanism for improving mechanical properties of these FSW joints.

So fabric property is a kind of relationship between fabric and various environmental factors, or a kind of relationship that fabrics exist in environment.
Fabric property involves about mechanics, heat, electricity, light, gas, sound, magnetic, dust and other factors, the relationship between fabric and these factors constitute BPCP of fabric, and the content of these properties is relatively simple.
Handle emphasizes mechanical properties, and luster emphasizes optical properties, while comfort involves physics, physiology, psychology etc., and function describes more integrated contents.
During applying, there are many factors that can break fabric, such as physical, mechanical factors and chemical factors.
For fabric designers, design goal is to obtain some specific characteristic, but their design basis need a comprehensive understanding to fabric property.Fabric property is relationships which come from various interaction with environmental factors, so fabric will form homologous property to environmental factors.

However, some newly developed attach technologies promise to offer more interesting features in terms of both mechanical and thermal properties.
The need of material flexibility is critical, for example, in assemblies of optical components for laser systems where mechanical stresses can cause geometrical distortion in the active laser medium, thus affecting the laser performance.
Then, properties of the sintered joint, retrieved from mechanical tests, are presented.
All the mechanical properties associated with the behaviours of the Ag joint under both modes of deformation are reported in Table 1.
Ouezdou, A design of a new miniature device for solder joints’ mechanical properties evaluation, P.

The present study was to investigate the film forming properties of tilapia skin gelatin as affected by the addition of 2%, 5% Arabic gum or pectin (g/g gelatin), as well as 1%, 2% glutaraldehyde (GTA) (g/g gelatin) in an attempt to improve gelatin film properties.
Determination of mechanical properties.
Results and Discussions Mechanical properties of gelatin films.
The test results of mechanical properties of gelatin film and gelatin-polysaccharides composite films were shown in Table 1.
These conclusions were in coincidence with the test results of film mechanical properties.

The toxic, corrosive, flammable and explosive properties of leakage make it difficult to approach the Fire in processing various types of fire.
Arm Fig.1 Ttructure diagram of Fire robots working device Structural design of Mechanical arm components Mechanical arm is the executive body of the fire Robot, to be good or bad of the institutional type will directly affect the entire system.
If the structure of the robot upper arm and the arm have the same form, it should be based on the movement and spider weight of the robot and other factors .
After treatment, the local force of the model will partly change, but it does not affect the overall results.
In the conditions of selecting 5 as the safety factor, we can ensure that the press of all parts are less than the maximum allowable stress, all that meet the actual requirements.

The dynamic mechanical properties and damping behavior of a laminated sandwich composite beam inserted with a viscoelastic layer is investigated.
The size of tested samples was shown in TABLE 2; Material properties are shown in Tables 3. 2.2 Dynamic mechanical analysis Dynamic mechanical analysis (DMA) was performed on a TA Instruments Q800 Dynamic mechanical analyzer.
Results and Discussion 3.1 Influencing factors for loss factor Most of viscoelastic materials exhibit three different mechanical states, glassy state, viscous state and elastomeric state with different temperatures.
Typical temperature spectrum of dynamic mechanical properties of viscoelastic material Fig. 3.
l The dynamic mechanical properties of the polyurea viscoelastic material showed this new kind of damping material has good damping properties in a broad range of damping temperature range and the loss factor is much more than traditional epoxy or polyurethanes.

Creep property is one of the most important factors to affect the reliability of soldered joints.
It has been proved feasible and useful adding tiny RE in the lead-free solder to improve the creep properties of solder joints [4-7].
But there are very few reports about the study of creep properties and reliability of low Ag content SnAgCuRE solder joints [8].
Measuring of Creep Properties of Solder Joints.
Once formed the RE compound, it is harmful to the mechanical properties of the solder alloy and to the creep properties of solder joint because of defect usually exiting in the solder joints during soldering.

Based on its finishing theory, process characteristics are key factors affecting the finishing effect, especially finishing uniformity.
Consequently, it has effects of finishing crankshafts, increasing surface quality and improving the physical-mechanical properties.
Based on its finishing theory, process characteristics are key factors affecting the finishing effect, especially finishing uniformity.
Wang: China Mechanical Engineering, Vol.12 (2001) No.1, p.300-302
Wang: China Mechanical Engineering, Vol. 10 (1999) No.5, p.502-505